Description

Check whether an extension is present in a fileset or an extensionSet.
If the extension is present then a property is set.

Note that this task
works with extensions as defined by the "Optional Package" specification.
For more information about optional packages, see the document
Optional Package Versioning in the documentation bundle for your
Java2 Standard Edition package, in file
guide/extensions/versioning.html or online at
http://java.sun.com/j2se/1.3/docs/guide/extensions/versioning.html.

See the Extension and ExtensionSet documentation for further details

Parameters

Attribute

Description

Required

property

The name of property to set if extensions is available.

Yes

file

The file to check for extension

No, one of file, nested
ExtensionSet or nested fileset must be present.